Title: WebFinger
Author: Matthias Pfefferle
Published: <strong>20 de abril de 2010</strong>
Last modified: 16 de diciembre de 2025

---

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![](https://ps.w.org/webfinger/assets/banner-772x250.jpg?rev=2815154)

![](https://ps.w.org/webfinger/assets/icon-256x256.png?rev=2815154)

# WebFinger

 Por [Matthias Pfefferle](https://profiles.wordpress.org/pfefferle/)

[Descargar](https://downloads.wordpress.org/plugin/webfinger.4.0.1.zip)

 * [Detalles](https://es.wordpress.org/plugins/webfinger/#description)
 * [Valoraciones](https://es.wordpress.org/plugins/webfinger/#reviews)
 *  [Instalación](https://es.wordpress.org/plugins/webfinger/#installation)
 * [Desarrollo](https://es.wordpress.org/plugins/webfinger/#developers)

 [Soporte](https://wordpress.org/support/plugin/webfinger/)

## Descripción

WebFinger allows you to be discovered on the web using an identifier like `you@yourdomain.
com` — similar to how email works, but for your online identity.

**Why is this useful?**

 * **Fediverse & Mastodon:** WebFinger is essential for federation. It allows Mastodon
   and other ActivityPub-powered platforms to find and follow your WordPress site.
 * **Decentralized Identity:** People can look you up using your WordPress domain,
   making your site the canonical source for your online identity.
 * **Works with other plugins:** This plugin provides the foundation that other 
   plugins (like the ActivityPub plugin) build upon.

**How it works:**

When someone searches for `@you@yourdomain.com` on Mastodon or another federated
service, their server asks your WordPress site: «Who is this person?» WebFinger 
answers that question by providing information about you and links to your profiles.

**Technical details:**

WebFinger is an open standard ([RFC 7033](http://tools.ietf.org/html/rfc7033)) that
enables discovery of information about people and resources on the internet. It 
works by responding to requests at `/.well-known/webfinger` on your domain.

## Instalación

### From WordPress.org (recommended)

 1. Go to **Plugins  Add New** in your WordPress admin
 2. Search for «webfinger»
 3. Click **Install Now**, then **Activate**
 4. Make sure pretty permalinks are enabled (**Settings  Permalinks** — select any 
    option except «Plain»)
 5. Visit **Tools  Site Health** to verify everything is working

### Manual Installation

 1. Download the plugin from [WordPress.org](https://wordpress.org/plugins/webfinger/)
    or [GitHub](https://github.com/pfefferle/wordpress-webfinger/releases)
 2. Upload the `webfinger` folder to `/wp-content/plugins/`
 3. Activate the plugin in **Plugins  Installed Plugins**
 4. Enable pretty permalinks if not already active
 5. Check **Tools  Site Health** to confirm the setup

## FAQ

### How do I customize my WebFinger identifier?

Go to **Users  Profile** in your WordPress admin and scroll down to the «WebFinger»
section. There you can set a custom identifier (the part before the @) and see all
your WebFinger aliases.

### How do I check if WebFinger is working?

Visit **Tools  Site Health** in your WordPress admin. The plugin adds checks that
verify your WebFinger endpoint is accessible and properly configured. If there are
any issues, you’ll see guidance on how to fix them.

### Does this work with Mastodon?

Yes! WebFinger is the standard that Mastodon and other Fediverse platforms use to
discover users. When someone searches for `@you@yourdomain.com`, WebFinger tells
them where to find your profile.

### Do I need pretty permalinks?

Yes. WebFinger requires pretty permalinks to be enabled. Go to **Settings  Permalinks**
and select any option other than «Plain».

### For developers: How do I add custom data to the WebFinger response?

Use the `webfinger_data` filter to add your own links or properties:

    ```
    add_filter( 'webfinger_data', function( $data ) {
      $data['links'][] = array(
        'rel'  => 'http://example.com/rel/profile',
        'href' => 'http://example.com/profile',
        'type' => 'text/html',
      );
      return $data;
    } );
    ```

### For developers: How do I add alternate output formats?

Use the `webfinger_render` action to output custom formats (like XRD):

    ```
    add_action( 'webfinger_render', function( $webfinger ) {
      // Set custom headers and output your format
      // ...
      exit;
    }, 5 );
    ```

See [https://github.com/pfefferle/wordpress-webfinger-legacy](https://github.com/pfefferle/wordpress-webfinger-legacy)
for a complete example.

### Where can I learn more about WebFinger?

 * WebFinger specification: [RFC 7033](http://tools.ietf.org/html/rfc7033)
 * Community resources: [http://webfinger.net](http://webfinger.net)

## Reseñas

![](https://secure.gravatar.com/avatar/2f88c80005db8d6bc27301a3023cc557e267ae64b6ccd8dd5773120511910312?
s=60&d=retro&r=g)

### 󠀁[Does as expected.](https://wordpress.org/support/topic/does-as-expected-6/)󠁿

 [Khürt Williams](https://profiles.wordpress.org/khurtwilliams/) 11 de noviembre
de 2023

I installed Webfinger and typed in the domain for my website into Mastodon instance
photog.social. Mastodon immediately found ky ActivityPub endpoints.

![](https://secure.gravatar.com/avatar/b52b9342fc917a4d5770bdd39e628f8b1f24dbef225b7803cda3c0ced245ffeb?
s=60&d=retro&r=g)

### 󠀁[No config easy way to add webfinger for your existing users](https://wordpress.org/support/topic/no-config-easy-way-to-add-webfinger-for-your-existing-users/)󠁿

 [ffpf](https://profiles.wordpress.org/ffpf/) 20 de enero de 2023

Adding this plugin adds handling for the WebFinger protocol for your existing users.
For example, when someone searches for you on Mastodon, your server will be queried
for accounts using an endpoint that looks like this: GET ${MASTODON_DOMAIN}/.well-
known/webfinger?resource=acct:${MASTODON_USER}@${MASTODON_DOMAIN} So, if you have
a WordPress blog with the URL blog.domain and that blog has a user (you can see 
users in the Users admin panel) named user1, then the webfinger URL for that user
would be: blog.domain/.well-known/webfinger?resource=acct:user1@blog.domain This
plugin implements handling for such requests for any user on the WordPress site 
without any additional configuration.

![](https://secure.gravatar.com/avatar/f5a3d6d6ce8cc462ba390139eadfe6da39a8de6dc1db4bc074094027c591386a?
s=60&d=retro&r=g)

### 󠀁[Didn’t work.](https://wordpress.org/support/topic/didnt-work-370/)󠁿

 [sunriselane](https://profiles.wordpress.org/sunriselane/) 15 de enero de 2023 
1 respuesta

There’s no admin panel and the documentation isn’t clear about how to configure 
the plugin.

 [ Leer todas las 3 reseñas ](https://wordpress.org/support/plugin/webfinger/reviews/)

## Colaboradores y desarrolladores

«WebFinger» es un software de código abierto. Las siguientes personas han colaborado
con este plugin.

Colaboradores

 *   [ Matthias Pfefferle ](https://profiles.wordpress.org/pfefferle/)
 *   [ Will Norris ](https://profiles.wordpress.org/willnorris/)

[Traduce «WebFinger» a tu idioma.](https://translate.wordpress.org/projects/wp-plugins/webfinger)

### ¿Interesado en el desarrollo?

[Revisa el código](https://plugins.trac.wordpress.org/browser/webfinger/) , echa
un vistazo al [repositorio SVN](https://plugins.svn.wordpress.org/webfinger/) o 
suscríbete al [registro de desarrollo](https://plugins.trac.wordpress.org/log/webfinger/)
por [RSS](https://plugins.trac.wordpress.org/log/webfinger/?limit=100&mode=stop_on_copy&format=rss).

## Registro de cambios

Project maintained on github at [pfefferle/wordpress-webfinger](https://github.com/pfefferle/wordpress-webfinger).

### 4.0.1

 * Fixed: Handle WP_Error objects in `filter_by_rel` to prevent errors when WebFinger
   lookup fails

### 4.0.0

 * Added: Site Health integration to check your WebFinger setup status directly 
   in WordPress
 * Added: User profile settings to customize your WebFinger identifier
 * Added: Verification links to easily test your WebFinger aliases
 * Improved: Security hardening for URI parsing and input validation
 * Improved: Modernized codebase for PHP 7.2+ with namespace support
 * Improved: Better organized code structure with separate classes
 * Updated: Development infrastructure with GitHub Actions for automated testing

### 3.2.7

 * Added: better output escaping
 * Fixed: stricter queries

### 3.2.6

 * remove E-Mail address

### 3.2.5

 * fix typo

### 3.2.4

 * update requirements

### 3.2.3

 * fixed `acct` scheme for discovery

### 3.2.2

 * fixed typo (thanks @ivucica)
 * use `acct` as default scheme

### 3.2.1

 * make `acct` protocol optional

### 3.2.0

 * global refactoring

### 3.1.6

 * added `user_nicename` as resource
 * fixed WordPress coding standard issues

### 3.1.5

 * fixed PHP warning

### 3.1.4

 * updated requirements

### 3.1.3

 * add support for the ‘aim’, ‘ymsgr’ and ‘acct’ protocol

### 3.1.2

 * fixed the legacy code
 * added feeds

### 3.1.1

 * fixed ‘get_user_by_various’ function

### 3.1.0

 * Added WebFinger legacy plugin, because the legacy version is still very popular
   and used by for example OStatus (Mastodon, Status.NET and GNU Social)
 * Added Webfinger for posts support

### 3.0.3

 * composer support
 * compatibility updates

### 3.0.2

 * `get_avatar_url` instead of custom code
 * some small code improvements
 * nicer PHP-docs

### 3.0.1

 * updated version informations
 * support the WordPress Coding Standard

### 3.0.0

 * added correct error-responses
 * remove legacy support for XRD and host-meta (props to Will Norris)

### 2.0.1

 * small bugfix

### 2.0.0

 * complete refactoring
 * removed simple-web-discovery
 * more filters and actions
 * works without /.well-known/ plugin

### 1.4.0

 * small fixes
 * added «webfinger» as well-known uri

### 1.3.1

 * added «rel»-filter (work in progress)
 * added more aliases

### 1.3

 * added host-meta resource feature (see latest spec)

### 1.2

 * added 404 http error if user doesn’t exist
 * added jrd discovery for host-meta

### 1.1

 * fixed an odd problem with lower WordPress versions
 * added support for the https://wordpress.org/extend/plugins/extended-profile/ (
   thanks to Singpolyma)

### 1.0.1

 * api improvements

### 1.0

 * basic simple-seb-discovery
 * json support
 * some small improvements

### 0.9.1

 * some changes to support http://unhosted.org

### 0.9

 * OStatus improvements
 * Better uri handling
 * Identifier overview (more to come)
 * Added filters
 * Added functions to get a users webfingers

### 0.7

 * Added do_action param (for future OStatus plugin)
 * Author-Url as Webfinger-Identifier

### 0.5

 * Initial release

## Plugin de la comunidad

Este plugin está desarrollado y recibe soporte de una comunidad. [Contribuye a este plugin](https://github.com/pfefferle/wordpress-webfinger)

## Meta

 *  Versión **4.0.1**
 *  Última actualización **hace 5 meses**
 *  Instalaciones activas **1.000+**
 *  Versión de WordPress ** 4.2 o superior **
 *  Probado hasta **6.9.4**
 *  Idioma
 * [English (US)](https://wordpress.org/plugins/webfinger/)
 * Etiquetas:
 * [activitypub](https://es.wordpress.org/plugins/tags/activitypub/)[discovery](https://es.wordpress.org/plugins/tags/discovery/)
   [jrd](https://es.wordpress.org/plugins/tags/jrd/)[ostatus](https://es.wordpress.org/plugins/tags/ostatus/)
   [Webfinger](https://es.wordpress.org/plugins/tags/webfinger/)
 *  [Vista avanzada](https://es.wordpress.org/plugins/webfinger/advanced/)

## Valoraciones

 3.7 de 5 estrellas.

 *  [  2 valoraciones de 5 estrellas     ](https://wordpress.org/support/plugin/webfinger/reviews/?filter=5)
 *  [  0 valoraciones de 4 estrellas     ](https://wordpress.org/support/plugin/webfinger/reviews/?filter=4)
 *  [  0 valoraciones de 3 estrellas     ](https://wordpress.org/support/plugin/webfinger/reviews/?filter=3)
 *  [  0 valoraciones de 2 estrellas     ](https://wordpress.org/support/plugin/webfinger/reviews/?filter=2)
 *  [  1 valoración de 1 estrellas     ](https://wordpress.org/support/plugin/webfinger/reviews/?filter=1)

[Your review](https://wordpress.org/support/plugin/webfinger/reviews/#new-post)

[Ver todas las valoraciones](https://wordpress.org/support/plugin/webfinger/reviews/)

## Colaboradores

 *   [ Matthias Pfefferle ](https://profiles.wordpress.org/pfefferle/)
 *   [ Will Norris ](https://profiles.wordpress.org/willnorris/)

## Soporte

¿Tienes algo que decir? ¿Necesitas ayuda?

 [Ver el foro de soporte](https://wordpress.org/support/plugin/webfinger/)

## Donar

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 [ Dona a este plugin ](https://notiz.blog/donate/)